12211001133 has 4 divisors (see below), whose sum is σ = 16281334848. Its totient is φ = 8140667420.

The previous prime is 12211001123. The next prime is 12211001137. The reversal of 12211001133 is 33110011221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12211001133 - 2¹⁴ = 12210984749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211001137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2035166853 + ... + 2035166858.

It is an arithmetic number, because the mean of its divisors is an integer number (4070333712).

Almost surely, 2^12211001133 is an apocalyptic number.

It is an amenable number.

12211001133 is a deficient number, since it is larger than the sum of its proper divisors (4070333715).

12211001133 is an equidigital number, since it uses as much as digits as its factorization.

12211001133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4070333714.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 12211001133 its reverse (33110011221), we get a palindrome (45321012354).

The spelling of 12211001133 in words is "twelve billion, two hundred eleven million, one thousand, one hundred thirty-three".